AMPLIFIER ARRANGEMENT
First Claim
1. A method of controlling the gain of an RF amplifier device, the RF amplifier device having an input signal and an output signal, the method comprisingcomparing a measure of magnitude of the input signal to a like measure of magnitude of the output signal;
- andusing a result of the comparison to selectively enable amplifiers making up said amplifier device.
3 Assignments
0 Petitions
Accused Products
Abstract
A gain-controlled RF amplifier system has an input node and an output node. The system has a plurality of amplifier devices, selectively connectable between the input node and the output node. The amplifier devices are placed in circuit according to a measured gain derived by comparing a magnitude of a signal input to the input node against a magnitude of a signal output from the output node, and a desired value of gain.
10 Citations
14 Claims
-
1. A method of controlling the gain of an RF amplifier device, the RF amplifier device having an input signal and an output signal, the method comprising
comparing a measure of magnitude of the input signal to a like measure of magnitude of the output signal; - and
using a result of the comparison to selectively enable amplifiers making up said amplifier device. - View Dependent Claims (2, 3, 4)
- and
-
5. A gain-controlled RF amplifier system, the system having an input node and an output node and further comprising
a plurality of amplifier devices, selectively connectable between the input node and the output node; -
circuitry for comparing a magnitude of a signal input to the input node against a magnitude of a signal output from the output node, the comparing circuitry having an output providing a comparison result; a control means responsive to the comparison result to select between the plurality of amplifier devices. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification